CVE-2026-50213: Bulk User Private Data Harvesting
The account validation endpoint /v1/User/validate returns comprehensive user profile data sheets, which can be crawled by iterating predictable identification strings.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Limit the endpoint response to the minimum necessary fields for validation; do not return comprehensive user profile data in responses to unauthenticated or public requests.
/v1/User/validate endpoint response_data = minimal - Configuration
Require strong authentication and proper authorization for any request that returns user profile information; deny or strip profile data for unauthenticated requests.
/v1/User/validate endpoint authentication_required = true - Configuration
Replace predictable, sequential or guessable identification strings with unguessable identifiers (e.g., opaque/random IDs) or require authorization to resolve identifiers, to prevent crawling by iterating IDs.
User identifier scheme predictability = non-predictable - Configuration
Implement strict rate limiting and request throttling (per IP, per API key, and per account) on the endpoint to prevent automated bulk enumeration.
API gateway (/v1/User/validate) rate_limit = enforced per-IP and per-account thresholds - Configuration
Apply anti-automation controls such as request throttling, progressive delays, challenge/response (e.g., CAPTCHA or proof-of-work) for high-volume or suspicious requests to the endpoint.
API endpoints anti-automation_controls = enabled - Compensating control
Deploy WAF or API gateway rules to detect and block enumeration patterns (sequential IDs, high-rate ID iteration) and to block or challenge clients exhibiting enumeration behavior.
- Compensating control
Restrict access to the validation endpoint to trusted networks or authenticated internal services where possible (network ACLs, VPN, or service-level allowlists) to reduce exposure.
- Operational
Review logs and telemetry for signs of bulk enumeration against /v1/User/validate, identify and block offending IPs or API keys, and investigate to determine scope of any harvested data; perform incident response if large-scale access is confirmed.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-50213?
CVE-2026-50213 has a high severity rating of 8.7.
How do I fix CVE-2026-50213?
To remediate CVE-2026-50213, update your Acer Connect M6e 5g Firmware to the latest version provided by Acer.
What kind of data is affected by CVE-2026-50213?
CVE-2026-50213 affects comprehensive user profile data that can be harvested from the account validation endpoint.
Who is impacted by CVE-2026-50213?
Users of Acer Connect M6e 5g Firmware are impacted by CVE-2026-50213 due to potential exposure of their private data.
How can CVE-2026-50213 be exploited?
CVE-2026-50213 can be exploited by iterating through predictable identification strings to access user profile data.